code: def __init__(self, X, y):
      self.X = X
      self.y = y
      self.obj = []
      self.times = []
      self.start_time = time.time()
      self.test_time = 0
  
file_path: lightning/examples/plot_svrg.py
imports: import sys
  import time
  import numpy
  import matplotlib.pyplot
  from sklearn.datasets import make_classification
  from sklearn.datasets import fetch_20newsgroups_vectorized
  from lightning.classification import SVRGClassifier
label_desc: Use image node_id 1 to create a new Callback object from inherited base classes: object with example: obj = Callback(X, y)